How do you reverse a string in place in C or C++?

Question

How do you reverse a string in C or C++ without requiring a separate buffer to hold the reversed string?

Answer 1

Here's my take on it in C. Did it for practice and tried to be as concise as possible! You enter a string via the command line, i.e ./program_name "enter string here"

#include 
#include 

void reverse(int s,int e,int len,char t,char* arg) {
   for(;s